<template>
	<view>
		<view v-if="showHeader" class="status" :style="{position:headerPosition,top:statusTop}"></view>
		<view v-if="showHeader" class="header" :style="{position:headerPosition,top:headerTop}">
			<view class="title">购物车</view>
		</view>
		<!-- 占位 -->
		<view v-if="showHeader" class="place"></view>
		<!-- 商品列表 -->
		<view class="goods-list">
			<view class="tis" style="margin-top: 50px;" v-if="goodsList.length == 0"><u-empty mode="car">
				</u-empty></view>
			<view class="row" v-for="(row,index) in goodsList" :key="index">
				<!-- 删除按钮 -->
				<view class="menu" @tap.stop="deleteGoods(row.id)">
					<view class="icon shanchu">
						<!-- <image style="width: 25px; height: 25px;" src="/static/删除.png" mode=""></image> -->
					</view>
				</view>
				<!-- 商品 -->
				<view class="carrier" :class="[theIndex==index?'open':oldIndex==index?'close':'']"
					@touchstart="touchStart(index,$event)" @touchmove="touchMove(index,$event)"
					@touchend="touchEnd(index,$event)">
					<!-- checkbox -->
					<view class="checkbox-box" @tap="selected(index)">
						<view class="checkbox">

							<view :class="[row.selected?'on':'']"></view>
						</view>
					</view>
					<!-- {{row.selected}} -->
					<!-- 商品信息 -->
					<view class="goods-info" @tap="toGoods(row)">
						<view class="img">
							<image :src="row.img"></image>
						</view>
						<view class="info">
							<view class="title">{{row.name}}</view>
							<view class="spec">{{row.spec}}</view>
							<view class="spec1">服务时间:{{row.time}}</view>
							<view class="price-number">
								<view class="price">￥{{row.price}}</view>
								<view class="number">
									<view class="sub" @tap.stop="sub(index)">
										<view class="icon jian">
											<!-- <u-icon name="minus"></u-icon> -->
										</view>
									</view>
									<view class="input" @tap.stop="discard">
										<input type="number" v-model="row.number" @input="sum($event,index)" />
									</view>
									<view class="add" @tap.stop="add(index)">
										<view class="icon jia">
											<!-- <u-icon name="plus"></u-icon> -->
										</view>
									</view>
								</view>
							</view>
						</view>
					</view>

				</view>
			</view>
			<uni-load-more :status="status" v-if="goodsList.length>0"></uni-load-more>
		</view>


		<!-- 脚部菜单 -->
		<view class="footer" :style="{bottom:footerbottom}">
			<view class="checkbox-box" @tap="allSelect">
				<view class="checkbox">
					<view :class="[isAllselected?'on':'']"></view>
				</view>
				<view class="text">全选</view>
			</view>
			<view class="delBtn" @tap="deleteList" v-if="selectedList.length>0">删除</view>
			<view class="settlement">
				<view class="sum">合计:<view class="money">￥{{sumPrice}}</view>
				</view>
				<view class="btn" @tap="toConfirmation">结算({{selectedList.length}})</view>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				sumPrice: '0.00',
				headerPosition: "fixed",
				headerTop: null,
				statusTop: null,
				showHeader: true,
				selectedList: [],
				isAllselected: false,
				goodsList: [
					// {
					// 	id: 1,
					// 	img: '/static/img/goods/p1.jpg',
					// 	name: '商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题',
					// 	spec: '规格:S码',
					// 	price: 127.5,
					// 	number: 1,
					// 	selected: false
					// },
					// {
					// 	id: 2,
					// 	img: '/static/img/goods/p2.jpg',
					// 	name: '商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题',
					// 	spec: '规格:S码',
					// 	price: 127.5,
					// 	number: 1,
					// 	selected: false
					// },
					// {
					// 	id: 3,
					// 	img: '/static/img/goods/p3.jpg',
					// 	name: '商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题',
					// 	spec: '规格:S码',
					// 	price: 127.5,
					// 	number: 1,
					// 	selected: false
					// },
					// {
					// 	id: 4,
					// 	img: '/static/img/goods/p4.jpg',
					// 	name: '商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题',
					// 	spec: '规格:S码',
					// 	price: 127.5,
					// 	number: 1,
					// 	selected: false
					// },
					// {
					// 	id: 5,
					// 	img: '/static/img/goods/p5.jpg',
					// 	name: '商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题商品标题',
					// 	spec: '规格:S码',
					// 	price: 127.5,
					// 	number: 1,
					// 	selected: false
					// }
				],
				//控制滑动效果
				theIndex: null,
				oldIndex: null,
				isStop: false,
				waterpageNo: 1,
				waterpageSize: 4,
				watertotal: 0,
				waterList: []
			}
		},



		onPageScroll(e) {
			//兼容iOS端下拉时顶部漂移
			this.headerPosition = e.scrollTop >= 0 ? "fixed" : "absolute";
			this.headerTop = e.scrollTop >= 0 ? null : 0;
			this.statusTop = e.scrollTop >= 0 ? null : -this.statusHeight + 'px';
			console.log("上拉触底触发");

			if (this.waterpageNo * this.waterpageSize >= this.watertotal) {

				this.status = "noMore"
				return;
			} else {
				this.status = "loading"
			}
			if (this.loading) return

			this.waterpageNo += 1
			console.log('我到地步了', this.waterpageNo)
			this.getwcartFall()
		},
		//下拉刷新，需要自己在page.json文件中配置开启页面下拉刷新 "enablePullDownRefresh": true
		onPullDownRefresh() {
			console.log("下拉刷新触发");
			this.watertotal = 0
			uni.reLaunch({
				url: '/otherPage/myCart/myCart'
			})
			setTimeout(function() {
				uni.stopPullDownRefresh();
			}, 1000);
		},
		onLoad() {
			//兼容H5下结算条位置
			// #ifdef H5
			this.footerbottom = document.getElementsByTagName('uni-tabbar')[0].offsetHeight + 'px';
			// #endif
			// #ifdef APP-PLUS
			this.showHeader = false;
			this.statusHeight = plus.navigator.getStatusbarHeight();
			// #endif
			this.getwcartFall()


		},
		methods: {
			getwcartFall() {
				const userid = JSON.parse(uni.getStorageSync("userinfo"))
				this.$http.post("/shoppingCart/page", {
					pageNo: this.waterpageNo,
					pageSize: this.waterpageSize,
					params: {
						userId: userid.id

					}
				}).then(res => {
					// console.log("瀑布信息", res);
					this.watertotal = res.result.total
					this.waterList = [...this.waterList, ...res.result.records]
					this.goodsList = this.waterList.map(item => {
						return {
							...item,
							selected: item.selected == 'true' ? true : false
						}
					})
					// console.log("信息232", this.goodsList);
				})
			},
			//加入商品 参数 goods:商品数据
			joinGoods(goods) {
				/*
				 * 这里只是展示一种添加逻辑，模板并没有做从其他页面加入商品到购物车的具体动作，
				 * 在实际应用上，前端并不会直接插入记录到goodsList这一个动作，一般是更新列表和本地列表缓存。
				 * 一般商城购物车的增删改动作是由后端来完成的,
				 * 后端记录后返回前端更新前端缓存
				 */
				let len = this.goodsList.length;
				let isFind = false; //是否找到ID一样的商品
				for (let i = 0; i < len; i++) {
					let row = this.goodsList[i];
					if (row.id == goods.id) { //找到商品一样的商品
						this.goodsList[i].number++; //数量自增
						isFind = true; //找到一样的商品
						break; //跳出循环
					}
				}
				if (!isFind) {
					//没有找到一样的商品，新增一行到购物车商品列表头部
					this.goodsList[i].unshift(goods);
				}
			},
			//控制左滑删除效果-begin
			touchStart(index, event) {
				//多点触控不触发
				if (event.touches.length > 1) {
					this.isStop = true;
					return;
				}
				this.oldIndex = this.theIndex;
				this.theIndex = null;
				//初始坐标
				this.initXY = [event.touches[0].pageX, event.touches[0].pageY];
			},
			touchMove(index, event) {
				//多点触控不触发
				if (event.touches.length > 1) {
					this.isStop = true;
					return;
				}
				let moveX = event.touches[0].pageX - this.initXY[0];
				let moveY = event.touches[0].pageY - this.initXY[1];

				if (this.isStop || Math.abs(moveX) < 5) {
					return;
				}
				if (Math.abs(moveY) > Math.abs(moveX)) {
					// 竖向滑动-不触发左滑效果
					this.isStop = true;
					return;
				}

				if (moveX < 0) {
					this.theIndex = index;
					this.isStop = true;
				} else if (moveX > 0) {
					if (this.theIndex != null && this.oldIndex == this.theIndex) {
						this.oldIndex = index;
						this.theIndex = null;
						this.isStop = true;
						setTimeout(() => {
							this.oldIndex = null;
						}, 150)
					}
				}
			},
			touchEnd(index, $event) {
				//结束禁止触发效果
				this.isStop = false;
			},
			//控制左滑删除效果-end


			//商品跳转
			toGoods(e) {
				uni.showToast({
					title: '商品' + e.serviceId,
					icon: "none"
				});
				uni.navigateTo({
					url: '/components/goods/goods?id=' + e.serviceId  
				});
			},
			//跳转确认订单页面
			toConfirmation() {
				let tmpList = [];
				let len = this.goodsList.length;
				console.log("信息", this.goodsList);
				for (let i = 0; i < len; i++) {
					if (this.goodsList[i].selected == true) {
						tmpList.push(this.goodsList[i]);
					}
				}
				console.log(111, tmpList);
				if (tmpList.length < 1) {
					uni.showToast({
						title: '请选择商品结算',
						icon: 'none'
					});
					return;
				}
				uni.setStorage({
					key: 'buylist',
					data: tmpList,
					success: () => {
						// uni.navigateTo({
						// 	url: '../../order/confirmation'
						// })
						this.$toPage("/otherPage/confirmation/confirmation", "cardIDs", JSON.stringify(this
							.selectedList))
					}
				})
			},
			//删除商品
			deleteGoods(id) {
				// let len = this.goodsList.length;
				// for (let i = 0; i < len; i++) {
				// 	if (id == this.goodsList[i].id) {
				// 		this.goodsList.splice(i, 1);
				// 		break;
				// 	}
				// }
				// this.selectedList.splice(this.selectedList.indexOf(id), 1);
				// this.sum();
				console.log("sHnchu", id);
				// this.getwcartFall()
				uni.showLoading({
					title: '加载中'
				});
				this.$http.delete(`/shoppingCart/delete/${id}`).then(res => {
					console.log("res", res);
					if (res.code == 200) {
						// const userinfo = JSON.parse(uni.getStorageSync("userinfo"))
						// this.getsc(userinfo.id)
						uni.hideLoading();
						uni.reLaunch({
							url: "/otherPage/myCart/myCart"
						})
					}
				})
				this.oldIndex = null;
				this.theIndex = null;
			},
			// 删除商品s
			deleteList() {
				console.log("信息", this.selectedList);
				console.log("信息", this.goodsList);
				const {
					id
				} = JSON.parse(uni.getStorageSync("userinfo"))
				uni.showLoading({
					title: '加载中'
				});
				this.$http.delete(`/shoppingCart/delete/${this.selectedList}/${id}`).then(res => {
					console.log("res", res);
					uni.hideLoading();
					uni.reLaunch({
						url: "/otherPage/myCart/myCart"
					})
				})
				// let len = this.selectedList.length;
				// while (this.selectedList.length > 0) {
				// 	this.deleteGoods(this.selectedList[0]);
				// }
				// this.selectedList = [];
				// this.isAllselected = this.selectedList.length == this.goodsList.length && this.goodsList.length > 0;
				// this.sum();
			},
			// 选中商品
			selected(index) {
				console.log('索引', index);
				console.log('数据', this.goodsList);
				this.goodsList[index].selected = this.goodsList[index].selected ? false : true;
				let i = this.selectedList.indexOf(this.goodsList[index].id);
				i > -1 ? this.selectedList.splice(i, 1) : this.selectedList.push(this.goodsList[index].id);
				console.log(111, this.selectedList);
				console.log(222, this.goodsList);
				this.isAllselected = this.selectedList.length == this.goodsList.length;
				console.log(this.isAllselected);
				this.sum();
			},
			//全选
			allSelect() {
				let len = this.goodsList.length;
				let arr = [];
				for (let i = 0; i < len; i++) {
					this.goodsList[i].selected = this.isAllselected ? false : true;
					arr.push(this.goodsList[i].id);
				}
				this.selectedList = this.isAllselected ? [] : arr;
				this.isAllselected = this.isAllselected || this.goodsList.length == 0 ? false : true;
				this.sum();
			},
			// 减少数量
			sub(index) {
				if (this.goodsList[index].number <= 1) {
					return;
				}
				this.goodsList[index].number--;
				this.sum();
			},
			// 增加数量
			add(index) {
				this.goodsList[index].number++;
				this.sum();
			},
			// 合计
			sum(e, index) {
				this.sumPrice = 0;
				let len = this.goodsList.length;
				for (let i = 0; i < len; i++) {
					if (this.goodsList[i].selected) {
						if (e && i == index) {
							this.sumPrice = this.sumPrice + (e.detail.value * this.goodsList[i].price);
						} else {
							this.sumPrice = this.sumPrice + (this.goodsList[i].number * this.goodsList[i].price);
						}
					}
				}
				this.sumPrice = this.sumPrice.toFixed(2);
			},
			discard() {
				//丢弃
			}


		}
	}
</script>
<style lang="scss">
	page {
		position: relative;
		background-color: #fff;
	}

	.checkbox-box {
		display: flex;
		align-items: center;

		.checkbox {
			width: 35upx;
			height: 35upx;
			border-radius: 100%;
			border: solid 2upx #f06c7a;
			display: flex;
			justify-content: center;
			align-items: center;

			.on {
				width: 25upx;
				height: 25upx;
				border-radius: 100%;
				background-color: #f06c7a;
			}
		}

		.text {
			font-size: 28upx;
			margin-left: 10upx;
		}
	}

	.status {
		width: 100%;
		height: 0;
		position: fixed;
		z-index: 10;
		background-color: #fff;
		top: 0;
		/*  #ifdef  APP-PLUS  */
		height: var(--status-bar-height); //覆盖样式
		/*  #endif  */
	}

	.header {
		width: 92%;
		padding: 0 4%;
		height: 100upx;
		display: flex;
		align-items: center;
		position: fixed;
		top: 0;
		z-index: 10;
		background-color: #fff;
		/*  #ifdef  APP-PLUS  */
		top: var(--status-bar-height);

		/*  #endif  */
		.title {
			font-size: 36upx;
		}

	}

	.place {

		background-color: #ffffff;
		height: 100upx;
		/*  #ifdef  APP-PLUS  */
		margin-top: var(--status-bar-height);
		/*  #endif  */
	}

	.goods-list {
		width: 100%;
		padding: 20upx 0 120upx 0;

		.tis {
			width: 100%;
			height: 60upx;
			display: flex;
			justify-content: center;
			align-items: center;
			font-size: 32upx;
		}

		.row {
			width: calc(92%);
			height: calc(22vw + 40upx);
			margin: 20upx auto;

			border-radius: 15upx;
			box-shadow: 0upx 5upx 20upx rgba(0, 0, 0, 0.1);
			display: flex;
			align-items: center;
			position: relative;
			overflow: hidden;
			z-index: 4;
			border: 0;

			.menu {
				.icon {
					color: #fff;
					// font-size: 25upx;
				}

				position: absolute;
				width: 30%;
				height: 100%;
				right: 0;
				display: flex;
				justify-content: center;
				align-items: center;
				background-color: red;
				color: #fff;
				z-index: 2;
			}

			.carrier {
				@keyframes showMenu {
					0% {
						transform: translateX(0);
					}

					100% {
						transform: translateX(-30%);
					}
				}

				@keyframes closeMenu {
					0% {
						transform: translateX(-30%);
					}

					100% {
						transform: translateX(0);
					}
				}

				&.open {
					animation: showMenu 0.25s linear both;
				}

				&.close {
					animation: closeMenu 0.15s linear both;
				}

				background-color: #fff;

				.checkbox-box {
					padding-left: 20upx;
					flex-shrink: 0;
					height: 22vw;
					margin-right: 20upx;
				}

				position: absolute;
				width: 100%;
				padding: 0 0;
				height: 100%;
				z-index: 3;
				display: flex;
				align-items: center;

				.goods-info {
					width: 100%;
					display: flex;
					padding-right: 20upx;

					.img {
						width: 22vw;
						height: 22vw;
						border-radius: 10upx;
						overflow: hidden;
						flex-shrink: 0;
						margin-right: 10upx;

						image {
							width: 22vw;
							height: 22vw;
						}
					}

					.info {
						width: 100%;
						height: 22vw;
						overflow: hidden;
						display: flex;
						flex-wrap: wrap;
						position: relative;

						.title {
							width: 140px;
							white-space: nowrap;

							/* 超出部分显示省略号 */
							font-size: 28upx;
							// display: -webkit-box;
							// -webkit-box-orient: vertical;
							// -webkit-line-clamp: 2;
							// text-align: justify;
							// overflow: hidden;
							overflow: hidden;
							/* 隐藏超出范围的部分 */
							text-overflow: ellipsis;
						}

						.spec {
							font-size: 22upx;
							background-color: #f3f3f3;
							color: #a7a7a7;
							height: 40upx;
							display: flex;
							align-items: center;
							padding: 0 10upx;
							border-radius: 20upx;
							position: absolute;
							top: 21px;
							// margin-bottom: 20vw;
						}

						.spec1 {
							font-size: 22upx;
							background-color: #f3f3f3;
							color: #a7a7a7;
							height: 40upx;
							display: flex;
							align-items: center;
							padding: 0 10upx;
							border-radius: 20upx;
							position: absolute;
							top: 45px;
							// margin-bottom: 20vw;
						}


						.price-number {
							position: absolute;
							width: 100%;
							bottom: 0upx;
							display: flex;
							justify-content: space-between;
							align-items: flex-end;
							font-size: 28upx;
							height: 60upx;

							.price {}

							.number {
								display: flex;
								justify-content: center;
								align-items: flex-end;

								.input {
									width: 60upx;
									height: 60upx;
									margin: 0 10upx;
									background-color: #f3f3f3;

									input {
										width: 60upx;
										height: 60upx;
										display: flex;
										justify-content: center;
										align-items: center;
										text-align: center;
										font-size: 26upx;
									}
								}

								.sub,
								.add {
									width: 45upx;
									height: 45upx;
									background-color: #f3f3f3;
									border-radius: 5upx;

									.icon {
										font-size: 22upx;
										width: 45upx;
										height: 45upx;
										display: flex;
										justify-content: center;
										align-items: center;

										image {
											width: 25px;
											height: 25px;
										}
									}
								}
							}
						}
					}
				}
			}
		}
	}

	.footer {
		width: 92%;
		padding: 0 4%;
		background-color: #fbfbfb;
		height: 100upx;
		display: flex;
		justify-content: space-between;
		align-items: center;
		font-size: 28upx;
		position: fixed;
		bottom: 0upx;
		z-index: 5;

		.delBtn {
			border: solid 1upx #f06c7a;
			color: #f06c7a;
			padding: 0 30upx;
			height: 50upx;
			border-radius: 30upx;
			display: flex;
			justify-content: center;
			align-items: center;
		}

		.settlement {
			width: 60%;
			display: flex;
			justify-content: flex-end;
			align-items: center;

			.sum {
				width: 50%;
				font-size: 28upx;
				margin-right: 10upx;
				display: flex;
				justify-content: flex-end;

				.money {
					font-weight: 600;
				}
			}

			.btn {
				padding: 0 30upx;
				height: 50upx;
				background-color: #f06c7a;
				color: #fff;
				display: flex;
				justify-content: center;
				align-items: center;

				border-radius: 30upx;
			}
		}
	}
</style>